Apical Pressure Generated Using Conventional Syringe Irrigation in Immature Teeth—An In Vitro Study
| Autor: | Roland Weiger, Ashraf ElAyouti, Marco Jäggi, Florin Eggmann, Thomas Connert, Eva Magni |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Irrigation
Technology Materials science sodium hypochlorite 02 engineering and technology Article 03 medical and health sciences open apex 0302 clinical medicine Tooth length Incisor Critical threshold medicine In vitro study General Materials Science Apical foramen Syringe Plunger Microscopy QC120-168.85 dental trauma QH201-278.5 030206 dentistry 021001 nanoscience & nanotechnology Engineering (General). Civil engineering (General) TK1-9971 endodontics NaOCl accident medicine.anatomical_structure Descriptive and experimental mechanics root canal treatment Electrical engineering. Electronics. Nuclear engineering TA1-2040 0210 nano-technology Biomedical engineering |
| Zdroj: | Materials Materials, Vol 14, Iss 2580, p 2580 (2021) Volume 14 Issue 10 |
| ISSN: | 1996-1944 |
| Popis: | This in vitro study aimed to evaluate apical pressure during irrigant delivery with syringe irrigation in immature teeth with an open apical foramen. Conventional syringe irrigation was performed in a 3D-printed immature incisor. A 5 mL syringe combined with 25 G and 30 G cannulas was used. Open-ended and side-vented needle tip designs were assessed. Cannulas were placed at tooth length (TL), TL −1 mm, TL −2 mm, and TL −4 mm. The syringe plunger was moved with a force of 10 N, 20 N, 40 N, and 80 N to simulate clinical conditions. A pressure sensor measured periapical pressures during irrigation. Each experiment was repeated 10 times. Data were analyzed descriptively (maximum, mean, standard deviation, 95% CI) with the critical threshold indicative of extrusion set at 7.64 mbar. 30 G cannulas with both needle tip designs never exceeded the threshold at any TL with a plunger force of 10–40 N. At 80 N, 30 G open-ended cannulas exceeded the threshold in 10%, 30 G side-vented in 20–60% of the measurements. At any TL, 25 G open-ended cannulas and 25 G side-vented cannulas never crossed the threshold with forces of 10–20 N and 10 N, respectively. Consequently, 30 G cannulas with both designs can be recommended for irrigant delivery in immature teeth. 25 G cannulas ought to be used with caution. |
| Databáze: | OpenAIRE |
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